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Analysis

  • max time kernel
    119s
  • max time network
    118s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16/12/2024, 18:42

General

  • Target

    4454014afef3893fdb8803d3bdf75f4891e19b0aacf56a30b3cf21570eb0024cN.exe

  • Size

    90KB

  • MD5

    64da20821cd7a8e71608e8c403003d10

  • SHA1

    e392318dd10f72f185af77d06dc4997516b082b8

  • SHA256

    4454014afef3893fdb8803d3bdf75f4891e19b0aacf56a30b3cf21570eb0024c

  • SHA512

    7422cfe7dee66ee920edc8230107d79d7fa573f1293ffa3aa47aa652131c98ee75d9eb84148dc4882c5493ce89ed74076023190b5fff9cdcad6997415cba1235

  • SSDEEP

    1536:UiYwjQt6QJvzZsgDIWzm/xsXfv+hYhyQQyV5uv4JBrB7w5VRGulTG1ZCL8nj1oDC:0wjZQJvzZsgsW6/Afv+hYfQIm4/rdE3U

Malware Config

Signatures

  • ModiLoader, DBatLoader

    ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.

  • Modiloader family
  • ModiLoader Second Stage 4 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • UPX packed file 19 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4454014afef3893fdb8803d3bdf75f4891e19b0aacf56a30b3cf21570eb0024cN.exe
    "C:\Users\Admin\AppData\Local\Temp\4454014afef3893fdb8803d3bdf75f4891e19b0aacf56a30b3cf21570eb0024cN.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4236
    • C:\Users\Admin\AppData\Local\Temp\4454014afef3893fdb8803d3bdf75f4891e19b0aacf56a30b3cf21570eb0024cN.exe
      "C:\Users\Admin\AppData\Local\Temp\4454014afef3893fdb8803d3bdf75f4891e19b0aacf56a30b3cf21570eb0024cN.exe"
      2⤵
      • Checks computer location settings
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3312
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\BIUVQ.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:840
        • C:\Windows\SysWOW64\reg.exe
          REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Win Pdf" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe" /f
          4⤵
          • Adds Run key to start application
          • System Location Discovery: System Language Discovery
          PID:3272
      • C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
        "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1736
        • C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:1508
        • C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          PID:4560

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\BIUVQ.txt

    Filesize

    145B

    MD5

    4eb61ec7816c34ec8c125acadc57ec1b

    SHA1

    b0015cc865c0bb1a027be663027d3829401a31cc

    SHA256

    08375cdb2e9819391f67f71e9718c15b48d3eaa452c54bd8fdd1f6a42e899aff

    SHA512

    f289f01d996dd643560370be8cdf8894e9a676ca3813f706c01ef5d705b9b18246c6cadf10d96edd433a616637b8a78fbd23c5738e76f1c4e671977b6d0cb6c1

  • C:\Users\Admin\AppData\Roaming\Microsoft\csrsll.exe

    Filesize

    90KB

    MD5

    4f2757b5f5dc5d5c05231d2890d78cfc

    SHA1

    c531611ddb5360095f63967c3a7f7d609c943f20

    SHA256

    8fcd46ce9d7b97bc349a887793f30315456d728f89b667191aede1d6bb03f77a

    SHA512

    7031d19f1518e74e272b4dd71a39a3d485ce975c7e31f8cdafc1c6b819658aed43ab93580d7ba91769579625ea354f25d346d2d9783a0baf75d78e5060a827f1

  • memory/1508-61-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1736-55-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/1736-41-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/1736-40-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/3312-9-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/3312-60-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/3312-7-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/3312-39-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/3312-11-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/3312-58-0x0000000000410000-0x00000000004D9000-memory.dmp

    Filesize

    804KB

  • memory/4236-14-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/4236-0-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/4236-5-0x0000000000400000-0x0000000000453000-memory.dmp

    Filesize

    332KB

  • memory/4236-6-0x0000000002A60000-0x0000000002A62000-memory.dmp

    Filesize

    8KB

  • memory/4236-3-0x00000000021D0000-0x00000000021D2000-memory.dmp

    Filesize

    8KB

  • memory/4236-4-0x00000000021E0000-0x00000000021E2000-memory.dmp

    Filesize

    8KB

  • memory/4560-51-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4560-57-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4560-56-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4560-54-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4560-45-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4560-62-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB